The Allahdad was a pogrom forcing the entire Mashhad Jewish community to convert to Islam, prompting one of the first European Jewish interventions on behalf of Iranian Jews.
Key Facts
- Date
- 1839
- Jewish families affected
- ~150 families (approx. 2,400 individuals)
- Deaths
- 30–40 killed
- Outcome for survivors
- Forced conversion to Islam; many practiced crypto-Judaism
- First documented account
- Joseph Wolff's 1845 travelogue
By the Numbers
Location
Cause → Event → Consequence
Tensions between Mashhad's Muslim population and the Jewish community were heightened by anti-British sentiment following Iran's 1838 withdrawal from Herat and the fact that some prominent local Jews served as British agents. A pretext emerged when a Jewish woman killed a dog for medical reasons during the Shia holy month of Muharram, and she was accused of deliberately insulting Islam.
In 1839, mobs attacked the Mashhadi Jewish community, burning the synagogue, looting homes, abducting girls, and killing between 30 and 40 people. Community leaders agreed that all remaining Jews—approximately 2,400 people—must vocally proclaim conversion to Islam to prevent further mass killing. The day was thereafter called the Allahdad, meaning 'God's Justice.'
Most converted Jews remained in Mashhad under Muslim names while covertly practicing Judaism, calling themselves Anusim ('the compelled ones'), a form of crypto-Judaism. Some fled to other Iranian Jewish communities or to Afghanistan. The event drew early intervention by European Jewish organizations on behalf of Iranian Jews, making it a significant episode in Jewish–Muslim relations.
Political Outcome
The entire Mashhadi Jewish community was forcibly converted to Islam; survivors practiced crypto-Judaism clandestinely while outwardly adhering to Islamic customs.
Jewish community openly practicing Judaism in Mashhad under Qajar rule
Jewish community officially Muslim, practicing Judaism in secret as crypto-Jews